A frequency converter includes: a primary winding 12 in which a plurality of windings on which a polyphase alternating voltage is applied are arranged periodically along a particular direction; a secondary winding 22 which is magnetically coupled to the primary winding 12 and in which a plurality of windings are arranged along the particular direction with a repetition period different from the primary winding 12; and a frequency modulation part 3 which is arranged on a magnetic path between the primary winding 12 and the secondary winding 22 and in which a plurality of magnetic materials 31 are arranged periodically. Then, the pitch of the plurality of magnetic materials 31 and the winding arrangement period of the primary winding 12 and the secondary winding 22 are different from each other so that an alternating voltage having a frequency different from the frequency of the polyphase alternating voltage is induced in the secondary winding 22.
Legal claims defining the scope of protection. Each claim is shown in both the original legal language and a plain English translation.
1. A frequency converter comprising: a first winding in which a plurality of windings on which a polyphase alternating voltage is applied are arranged approximately with equal pitch along a particular direction; a second winding which is magnetically coupled to the first winding and in which a plurality of windings are arranged along the particular direction with different pitch from the first winding; and a magnetic material row which is arranged on a magnetic path between the first and the second winding magnetically coupled to each other and in which a plurality of magnetic materials are arranged approximately with equal pitch along the particular direction, wherein the first winding, the second winding and the magnetic material row are non-movable parts, and a number of the plurality of magnetic materials in the particular direction and a number of repeated patterns of the plurality of windings of the first and the second winding are different from each other so that an alternating voltage having a frequency different from the frequency of the polyphase alternating voltage is induced in the second winding and the second winding outputs the alternating voltage.
This invention relates to a frequency converter designed to transform a polyphase alternating voltage into an alternating voltage of a different frequency without moving parts. The converter includes a first winding with multiple windings arranged at equal pitch along a specific direction, where a polyphase alternating voltage is applied. A second winding, magnetically coupled to the first winding, has multiple windings arranged along the same direction but with a different pitch. A magnetic material row, positioned on the magnetic path between the two windings, consists of multiple magnetic materials arranged at equal pitch along the same direction. The first winding, second winding, and magnetic material row are all stationary components. The number of magnetic materials in the magnetic material row differs from the number of repeated winding patterns in the first and second windings. This difference in counts ensures that an alternating voltage of a different frequency is induced in the second winding, which then outputs this transformed voltage. The design eliminates the need for mechanical movement, providing a compact and reliable frequency conversion solution.
3. The frequency converter according to any one of claim 1 , comprising a cylindrical holding member holding the magnetic material row, wherein the particular direction is a circumferential direction of the holding member and the first winding and the second winding are arranged in a manner such as to generate a periodic magnetic field along the circumferential direction.
This frequency converter from the previous description includes a cylindrical holder that secures the row of magnetic material. The direction of material arrangement is along the circumference of this cylinder. Both the primary and secondary windings are positioned to create a periodic magnetic field that wraps around the cylinder's circumference. In other words, the coils create a repeating magnetic pattern along the circular path around the cylinder.
4. The frequency converter according to claim 3 , wherein the first winding and the second winding are arranged in such a manner that a winding axis is directed to a center of the holding member.
This cylindrical frequency converter from the previous description has its primary and secondary windings positioned such that the axis of each winding points directly towards the center of the cylindrical holder. This arrangement ensures the magnetic field generated by each coil effectively interacts with the magnetic material on the cylinder.
5. The frequency converter according to any one of claim 1 , comprising a disk-shaped holding member holding the magnetic material row, wherein the particular direction is a circumferential direction of the holding member and the first winding and the second winding are arranged in a manner such as to generate a periodic magnetic field along the circumferential direction.
This frequency converter has a disk-shaped holder that secures the row of magnetic material. The direction of material arrangement is along the circumference of the disk. Both the primary and secondary windings are positioned to create a periodic magnetic field that wraps around the disk's circumference. In other words, the coils create a repeating magnetic pattern along the circular path around the disk.
6. The frequency converter according to claim 5 , wherein the first winding and the second winding are arranged in such a manner that a winding axis is approximately perpendicular to the holding member.
In this disk-shaped frequency converter from the previous description, the primary and secondary windings are positioned such that the axis of each winding is roughly perpendicular (at a 90-degree angle) to the surface of the disk-shaped holder. This orientation ensures the magnetic field generated by each coil effectively interacts with the magnetic material on the disk.
7. A frequency converter comprising: a first winding in which a plurality of windings on which a polyphase alternating voltage is applied are arranged approximately with equal pitch along a particular direction; a magnet row which is magnetically coupled to the first winding and in which a plurality of magnetic pole pairs are arranged along the particular direction with different pitch from the first winding, a magnetic material row which is arranged on a magnetic path between the first winding and the magnet row magnetically coupled to each other and in which a plurality of magnetic materials are arranged approximately with equal pitch along the particular direction; and a second winding in which a plurality of windings are arranged between the plurality of magnetic materials or alternatively wound around each magnetic material, wherein the first winding, the magnet row, the magnetic material row and the second winding are non-movable parts, and a number of the plurality of magnetic materials in the particular direction is different from a number of repeated patterns of the plurality of windings of the first winding and a number of the magnet pairs so that an alternating voltage having a frequency different from the frequency of the polyphase alternating voltage is induced in the second winding and the second winding outputs the alternating voltage.
The frequency converter alters the frequency of AC voltage. It has a primary winding where multiple coils, powered by polyphase AC voltage, are aligned at roughly equal spacing along a direction. A magnet row with alternating magnetic pole pairs is magnetically coupled to the first winding. The pole pairs are aligned along the same direction as the first winding coils but with different spacing. A row of magnetic material is placed on the magnetic path between the primary winding and magnet row, also with roughly equal spacing of the magnetic elements. A secondary winding has coils arranged between or around the magnetic materials. The components are all fixed in place. The numbers of magnetic elements, repeating coil patterns of the primary winding, and magnetic pole pairs are all different. This generates an AC voltage in the secondary winding that has a different frequency than the AC voltage applied to the primary winding. The secondary winding then outputs this altered-frequency AC voltage.
9. The frequency converter according to any one of claim 7 , comprising a cylindrical holding member holding the magnetic material row, wherein the particular direction is a circumferential direction of the holding member and the first winding and the second winding are arranged in a manner such as to generate a periodic magnetic field along the circumferential direction.
This frequency converter which involves magnetic pole pairs includes a cylindrical holder that secures the row of magnetic material. The direction of material arrangement is along the circumference of this cylinder. Both the primary and secondary windings are positioned to create a periodic magnetic field that wraps around the cylinder's circumference.
10. The frequency converter according to claim 9 , wherein the first winding and the second winding are arranged in such a manner that a winding axis is directed to a center of the holding member.
This cylindrical frequency converter which involves magnetic pole pairs has its primary and secondary windings positioned such that the axis of each winding points directly towards the center of the cylindrical holder.
11. The frequency converter according to any one of claim 7 , comprising a disk-shaped holding member holding the magnetic material row, wherein the particular direction is a circumferential direction of the holding member and the first winding and the second winding are arranged in a manner such as to generate a periodic magnetic field along the circumferential direction.
This frequency converter which involves magnetic pole pairs has a disk-shaped holder that secures the row of magnetic material. The direction of material arrangement is along the circumference of the disk. Both the primary and secondary windings are positioned to create a periodic magnetic field that wraps around the disk's circumference.
12. The frequency converter according to claim 11 , wherein the first winding and the second winding are arranged in such a manner that a winding axis is approximately perpendicular to the holding member.
In this disk-shaped frequency converter which involves magnetic pole pairs, the primary and secondary windings are positioned such that the axis of each winding is roughly perpendicular (at a 90-degree angle) to the surface of the disk-shaped holder.
13. The frequency converter according to claim 7 , wherein the plurality of windings of the second winding are arranged between the plurality of magnetic materials.
This frequency converter which involves magnetic pole pairs is configured so the coils of the secondary winding are placed in the spaces between the individual magnetic material elements.
14. The frequency converter according to claim 7 , wherein the plurality of windings of the second winding are wound around each magnetic material.
This frequency converter which involves magnetic pole pairs is configured so the coils of the secondary winding are wrapped around each of the individual magnetic material elements.
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March 22, 2013
September 5, 2017
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